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Boundary characterization of rub-impact response of a helicopter supercritical transmission shaft with a dry friction damper
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Sheng JIN1, Li-yao SONG1, Peng CAO2, Jian LI2, You-peng YOU1, Ru-peng ZHU1, Dan WANG1
Journal of Vibration Engineering | 2024, 37(5) : 756 - 769
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Journal of Vibration Engineering | 2024, 37(5): 756-769
Boundary characterization of rub-impact response of a helicopter supercritical transmission shaft with a dry friction damper
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Sheng JIN1, Li-yao SONG1, Peng CAO2, Jian LI2, You-peng YOU1, Ru-peng ZHU1, Dan WANG1
Affiliations
  • 1National Key Laboratory of Science and Technology on Helicopter Transmission，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China
  • 2National Key Laboratory of Science and Technology on Helicopter Transmission，AECC Hunan Aviation Powerplant Research Institute，Zhuzhou 412002，China
Published: 2024-05-28 doi: 10.16385/j.cnki.issn.1004-4523.2024.05.004
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In pursuit of the ideal power-to-weight ratio，supercritical transmission shaft systems are increasingly used in the design of helicopter structures，which leads to the generation of violent vibrations driving through its critical speed. To suppress the excessive transcritical vibration，dry friction dampers are usually employed. In this study，a supercritical transmission shaft system with a dry friction damper is investigated. The governing equations are established and the boundary characteristics of various rub-impact responses of the system under eccentric excitation of the transmission shaft are analyzed. Firstly，the nonlinear governing equations of the damper/shaft system are constructed. Secondly，typical response characteristics are determined using frequency sweep，and the boundaries of impact occurrence and stability conditions for the synchronous full annular rub are solved using analytical methods. Finally，the derived response boundaries are verified by the Runge-Kutta method，and the relationship between the response boundaries and the system parameters is further explored.

supercritical transmission shaft  /  dry friction damper  /  rub-impact  /  response characteristics  /  stability analysis
Sheng JIN, Li-yao SONG, Peng CAO, Jian LI, You-peng YOU, Ru-peng ZHU, Dan WANG. Boundary characterization of rub-impact response of a helicopter supercritical transmission shaft with a dry friction damper[J]. Journal of Vibration Engineering, 2024 , 37 (5) : 756 -769 . DOI: 10.16385/j.cnki.issn.1004-4523.2024.05.004
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Year 2024 volume 37 Issue 5
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.2024.05.004
  • Receive Date：2023-07-26
  • Online Date：2026-02-09
  • Published：2024-05-28
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History
  • Received：2023-07-26
  • Revised：2023-10-20
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Affiliations
    1National Key Laboratory of Science and Technology on Helicopter Transmission，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China
    2National Key Laboratory of Science and Technology on Helicopter Transmission，AECC Hunan Aviation Powerplant Research Institute，Zhuzhou 412002，China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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